From a28f61bc8b5485af2909e323906da165a64cf562 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jean-Micha=C3=ABl=20Celerier?=
 <jeanmichael.celerier@gmail.com>
Date: Mon, 9 Dec 2024 15:02:58 -0500
Subject: [PATCH] examples: add prompt composer

---
 examples/Advanced/AI/PromptComposer.hpp | 69 +++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 examples/Advanced/AI/PromptComposer.hpp

diff --git a/examples/Advanced/AI/PromptComposer.hpp b/examples/Advanced/AI/PromptComposer.hpp
new file mode 100644
index 00000000..0798fac8
--- /dev/null
+++ b/examples/Advanced/AI/PromptComposer.hpp
@@ -0,0 +1,69 @@
+#pragma once
+#include <boost/algorithm/string.hpp>
+#include <cmath>
+#include <fmt/format.h>
+#include <halp/controls.hpp>
+#include <halp/dynamic_port.hpp>
+#include <halp/meta.hpp>
+
+#include <algorithm>
+
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+
+namespace ai
+{
+struct PromptComposer
+{
+  halp_meta(name, "Prompt composer")
+  halp_meta(c_name, "prompt_composer")
+  halp_meta(author, "Jean-Michaël Celerier")
+  halp_meta(category, "AI")
+  halp_meta(description, "Generate a prompt with percentages")
+  halp_meta(manual_url, "https://ossia.io/score-docs/processes/prompt-composer.html")
+  halp_meta(uuid, "a4227e94-cf7d-4776-9aa0-2f384be7d97f")
+
+  struct inputs
+  {
+    struct : halp::lineedit<"Keywords", "">
+    {
+      static std::function<void(PromptComposer&, const std::string&)>
+      on_controller_interaction()
+      {
+        return [](PromptComposer& object, std::string_view value) {
+          int n = std::count(value.begin(), value.end(), ',');
+          object.inputs.in_i.request_port_resize(n + 1);
+        };
+      }
+    } controller;
+
+    halp::dynamic_port<halp::knob_f32<"Input {}">> in_i;
+  } inputs;
+
+  struct
+  {
+    halp::val_port<"Output", std::string> out;
+  } outputs;
+
+  void operator()()
+  {
+    outputs.out.value = "";
+    thread_local std::vector<std::string> strs;
+    static const auto loc = std::locale("C");
+    strs.clear();
+    boost::split(strs, inputs.controller.value, boost::is_any_of(","));
+    auto it = strs.begin();
+    for(auto& val : inputs.in_i.ports)
+    {
+      boost::trim(*it, loc);
+      outputs.out.value += fmt::format("({}:{}), ", *it, val.value);
+      ++it;
+    }
+    if(outputs.out.value.ends_with(", "))
+    {
+      outputs.out.value.pop_back();
+      outputs.out.value.pop_back();
+    }
+  }
+};
+
+}